Digg Distributed Denial of Service:
A DDoS caused by the unusually high, and often unexpected, level of traffic when a page on the host is linked to from popular social bookmarking site Digg.

Digg.com User abc123 posted a link to iamrichlist.com.
after reaching the front page of digg, the traffic from all of digg's users overwhelmed the server and/or the server's connection, and it was DoS'ed